Repozytorium
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Inne
Interaction of niacin with copper ions.
Autorzy
Rok wydania
2013
Czasopismo
Numer woluminu
60
Strony
130-139
DOI
10.1016/j.poly.2013.05.023
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The interaction of copper(II) ions with nicotinic acid and nicotinamide in aqueous solutions was examined. Potentiometric and spectroscopic methods indicate formation of the MHL, ML and ML2 species in Cu(II)–nicotinic acid system whereas in Cu(II)–nicotinamide system the ML and ML(OH) species have been identified. The polarographic measurements have shown the stepwise reduction of Cu(II) complexes on the mercury electrode through an intermediate state of Cu(I). The values of stability constants for Cu(I) and Cu(II)–nicotinate and nicotinamide complexes were determined. The coordination mode of nicotinic acid and nicotinamide to copper ions is discussed.
Słowa kluczowe
copper complexes, Nicotinic acid, Nicotinamide, Stability constants, Electrode reduction mechanism
Adres publiczny
http://dx.doi.org/10.1016/j.poly.2013.05.023
Strona internetowa wydawcy
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